Safety points

Keep batteries away from young children - some tablet types look like sweets. Never allow anyone to try opening a battery or throw it on a fire. Do not attempt to recharge batteries other than nickel types marked as suitable, and always recharge through the recommended transformer.

It is good practice to remove the batteries from photographic equipment you will not be using for some months. Changing non-rechargeable batteries once a year is also advisable - especially before going to a location where the correct replacements might be difficult to buy.